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Finding the Fourth Proportional to 169,675.20, 254,512.80 and 107,620.80

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Solution

The fourth proportional to 169,675.20, 254,512.80 and 107,620.80 is: 161,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,675.20 : 254,512.80 = 107,620.80 : x
  2. Step 2: Convert to fraction form
    169,675.20/254,512.80 = 107,620.80/x
  3. Step 3: Cross multiply
    169,675.20x = 254,512.80 × 107,620.80
  4. Step 4: Simplify right side
    169,675.20x = 27,390,871,146.24
  5. Step 5: Solve for x
    x = 27,390,871,146.24/169,675.20
  6. Step 6: Final answer
    x = 161,431.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.